Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_csv.py @ 65035:87f4b32905df 2.7

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Cosmetic fix to use print function.
author Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp>
date Fri, 01 Oct 2010 10:48:47 +0000
parents 02aefc4257de
children 8629c2a234db
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # -*- coding: iso-8859-1 -*-
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2 # Copyright (C) 2001,2002 Python Software Foundation
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3 # csv package unit tests
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4
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5 import sys
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6 import os
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7 import unittest
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8 from StringIO import StringIO
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9 import tempfile
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10 import csv
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11 import gc
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12 import io
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13 from test import test_support
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14
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15 class Test_Csv(unittest.TestCase):
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16 """
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17 Test the underlying C csv parser in ways that are not appropriate
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18 from the high level interface. Further tests of this nature are done
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19 in TestDialectRegistry.
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20 """
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21 def _test_arg_valid(self, ctor, arg):
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22 self.assertRaises(TypeError, ctor)
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23 self.assertRaises(TypeError, ctor, None)
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24 self.assertRaises(TypeError, ctor, arg, bad_attr = 0)
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25 self.assertRaises(TypeError, ctor, arg, delimiter = 0)
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26 self.assertRaises(TypeError, ctor, arg, delimiter = 'XX')
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27 self.assertRaises(csv.Error, ctor, arg, 'foo')
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28 self.assertRaises(TypeError, ctor, arg, delimiter=None)
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29 self.assertRaises(TypeError, ctor, arg, delimiter=1)
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30 self.assertRaises(TypeError, ctor, arg, quotechar=1)
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31 self.assertRaises(TypeError, ctor, arg, lineterminator=None)
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32 self.assertRaises(TypeError, ctor, arg, lineterminator=1)
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33 self.assertRaises(TypeError, ctor, arg, quoting=None)
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34 self.assertRaises(TypeError, ctor, arg,
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35 quoting=csv.QUOTE_ALL, quotechar='')
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36 self.assertRaises(TypeError, ctor, arg,
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37 quoting=csv.QUOTE_ALL, quotechar=None)
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38
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39 def test_reader_arg_valid(self):
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40 self._test_arg_valid(csv.reader, [])
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41
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42 def test_writer_arg_valid(self):
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43 self._test_arg_valid(csv.writer, StringIO())
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44
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45 def _test_default_attrs(self, ctor, *args):
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46 obj = ctor(*args)
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47 # Check defaults
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48 self.assertEqual(obj.dialect.delimiter, ',')
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49 self.assertEqual(obj.dialect.doublequote, True)
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50 self.assertEqual(obj.dialect.escapechar, None)
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51 self.assertEqual(obj.dialect.lineterminator, "\r\n")
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52 self.assertEqual(obj.dialect.quotechar, '"')
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53 self.assertEqual(obj.dialect.quoting, csv.QUOTE_MINIMAL)
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54 self.assertEqual(obj.dialect.skipinitialspace, False)
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55 self.assertEqual(obj.dialect.strict, False)
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56 # Try deleting or changing attributes (they are read-only)
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57 self.assertRaises(TypeError, delattr, obj.dialect, 'delimiter')
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58 self.assertRaises(TypeError, setattr, obj.dialect, 'delimiter', ':')
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59 self.assertRaises(AttributeError, delattr, obj.dialect, 'quoting')
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60 self.assertRaises(AttributeError, setattr, obj.dialect,
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61 'quoting', None)
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62
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63 def test_reader_attrs(self):
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64 self._test_default_attrs(csv.reader, [])
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65
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66 def test_writer_attrs(self):
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67 self._test_default_attrs(csv.writer, StringIO())
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68
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69 def _test_kw_attrs(self, ctor, *args):
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70 # Now try with alternate options
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71 kwargs = dict(delimiter=':', doublequote=False, escapechar='\\',
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72 lineterminator='\r', quotechar='*',
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73 quoting=csv.QUOTE_NONE, skipinitialspace=True,
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74 strict=True)
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75 obj = ctor(*args, **kwargs)
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76 self.assertEqual(obj.dialect.delimiter, ':')
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77 self.assertEqual(obj.dialect.doublequote, False)
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78 self.assertEqual(obj.dialect.escapechar, '\\')
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79 self.assertEqual(obj.dialect.lineterminator, "\r")
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80 self.assertEqual(obj.dialect.quotechar, '*')
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81 self.assertEqual(obj.dialect.quoting, csv.QUOTE_NONE)
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82 self.assertEqual(obj.dialect.skipinitialspace, True)
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83 self.assertEqual(obj.dialect.strict, True)
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84
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85 def test_reader_kw_attrs(self):
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86 self._test_kw_attrs(csv.reader, [])
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87
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88 def test_writer_kw_attrs(self):
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89 self._test_kw_attrs(csv.writer, StringIO())
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90
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91 def _test_dialect_attrs(self, ctor, *args):
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92 # Now try with dialect-derived options
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93 class dialect:
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94 delimiter='-'
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95 doublequote=False
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96 escapechar='^'
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97 lineterminator='$'
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98 quotechar='#'
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99 quoting=csv.QUOTE_ALL
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100 skipinitialspace=True
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101 strict=False
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102 args = args + (dialect,)
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103 obj = ctor(*args)
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104 self.assertEqual(obj.dialect.delimiter, '-')
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105 self.assertEqual(obj.dialect.doublequote, False)
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106 self.assertEqual(obj.dialect.escapechar, '^')
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107 self.assertEqual(obj.dialect.lineterminator, "$")
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108 self.assertEqual(obj.dialect.quotechar, '#')
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109 self.assertEqual(obj.dialect.quoting, csv.QUOTE_ALL)
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110 self.assertEqual(obj.dialect.skipinitialspace, True)
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111 self.assertEqual(obj.dialect.strict, False)
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112
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113 def test_reader_dialect_attrs(self):
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114 self._test_dialect_attrs(csv.reader, [])
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115
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116 def test_writer_dialect_attrs(self):
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117 self._test_dialect_attrs(csv.writer, StringIO())
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118
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119
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120 def _write_test(self, fields, expect, **kwargs):
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121 fd, name = tempfile.mkstemp()
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122 fileobj = os.fdopen(fd, "w+b")
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123 try:
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124 writer = csv.writer(fileobj, **kwargs)
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125 writer.writerow(fields)
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126 fileobj.seek(0)
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127 self.assertEqual(fileobj.read(),
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128 expect + writer.dialect.lineterminator)
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129 finally:
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130 fileobj.close()
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131 os.unlink(name)
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132
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133 def test_write_arg_valid(self):
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134 self.assertRaises(csv.Error, self._write_test, None, '')
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135 self._write_test((), '')
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136 self._write_test([None], '""')
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137 self.assertRaises(csv.Error, self._write_test,
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138 [None], None, quoting = csv.QUOTE_NONE)
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139 # Check that exceptions are passed up the chain
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140 class BadList:
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141 def __len__(self):
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142 return 10;
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143 def __getitem__(self, i):
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144 if i > 2:
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145 raise IOError
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146 self.assertRaises(IOError, self._write_test, BadList(), '')
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147 class BadItem:
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148 def __str__(self):
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149 raise IOError
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150 self.assertRaises(IOError, self._write_test, [BadItem()], '')
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151
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152 def test_write_bigfield(self):
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153 # This exercises the buffer realloc functionality
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154 bigstring = 'X' * 50000
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155 self._write_test([bigstring,bigstring], '%s,%s' % \
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156 (bigstring, bigstring))
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157
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158 def test_write_quoting(self):
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159 self._write_test(['a',1,'p,q'], 'a,1,"p,q"')
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160 self.assertRaises(csv.Error,
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161 self._write_test,
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162 ['a',1,'p,q'], 'a,1,p,q',
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163 quoting = csv.QUOTE_NONE)
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164 self._write_test(['a',1,'p,q'], 'a,1,"p,q"',
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165 quoting = csv.QUOTE_MINIMAL)
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166 self._write_test(['a',1,'p,q'], '"a",1,"p,q"',
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167 quoting = csv.QUOTE_NONNUMERIC)
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168 self._write_test(['a',1,'p,q'], '"a","1","p,q"',
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169 quoting = csv.QUOTE_ALL)
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170 self._write_test(['a\nb',1], '"a\nb","1"',
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171 quoting = csv.QUOTE_ALL)
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172
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173 def test_write_escape(self):
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174 self._write_test(['a',1,'p,q'], 'a,1,"p,q"',
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175 escapechar='\\')
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176 self.assertRaises(csv.Error,
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177 self._write_test,
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178 ['a',1,'p,"q"'], 'a,1,"p,\\"q\\""',
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179 escapechar=None, doublequote=False)
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180 self._write_test(['a',1,'p,"q"'], 'a,1,"p,\\"q\\""',
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181 escapechar='\\', doublequote = False)
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182 self._write_test(['"'], '""""',
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183 escapechar='\\', quoting = csv.QUOTE_MINIMAL)
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184 self._write_test(['"'], '\\"',
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185 escapechar='\\', quoting = csv.QUOTE_MINIMAL,
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186 doublequote = False)
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187 self._write_test(['"'], '\\"',
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188 escapechar='\\', quoting = csv.QUOTE_NONE)
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189 self._write_test(['a',1,'p,q'], 'a,1,p\\,q',
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190 escapechar='\\', quoting = csv.QUOTE_NONE)
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191
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192 def test_writerows(self):
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193 class BrokenFile:
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194 def write(self, buf):
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195 raise IOError
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196 writer = csv.writer(BrokenFile())
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197 self.assertRaises(IOError, writer.writerows, [['a']])
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198 fd, name = tempfile.mkstemp()
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199 fileobj = os.fdopen(fd, "w+b")
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200 try:
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201 writer = csv.writer(fileobj)
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202 self.assertRaises(TypeError, writer.writerows, None)
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203 writer.writerows([['a','b'],['c','d']])
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204 fileobj.seek(0)
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205 self.assertEqual(fileobj.read(), "a,b\r\nc,d\r\n")
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206 finally:
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207 fileobj.close()
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208 os.unlink(name)
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209
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210 def _read_test(self, input, expect, **kwargs):
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211 reader = csv.reader(input, **kwargs)
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212 result = list(reader)
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213 self.assertEqual(result, expect)
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214
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215 def test_read_oddinputs(self):
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216 self._read_test([], [])
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217 self._read_test([''], [[]])
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218 self.assertRaises(csv.Error, self._read_test,
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219 ['"ab"c'], None, strict = 1)
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220 # cannot handle null bytes for the moment
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221 self.assertRaises(csv.Error, self._read_test,
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222 ['ab\0c'], None, strict = 1)
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223 self._read_test(['"ab"c'], [['abc']], doublequote = 0)
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224
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225 def test_read_eol(self):
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226 self._read_test(['a,b'], [['a','b']])
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227 self._read_test(['a,b\n'], [['a','b']])
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228 self._read_test(['a,b\r\n'], [['a','b']])
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229 self._read_test(['a,b\r'], [['a','b']])
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230 self.assertRaises(csv.Error, self._read_test, ['a,b\rc,d'], [])
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231 self.assertRaises(csv.Error, self._read_test, ['a,b\nc,d'], [])
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232 self.assertRaises(csv.Error, self._read_test, ['a,b\r\nc,d'], [])
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233
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234 def test_read_escape(self):
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235 self._read_test(['a,\\b,c'], [['a', 'b', 'c']], escapechar='\\')
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236 self._read_test(['a,b\\,c'], [['a', 'b,c']], escapechar='\\')
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237 self._read_test(['a,"b\\,c"'], [['a', 'b,c']], escapechar='\\')
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238 self._read_test(['a,"b,\\c"'], [['a', 'b,c']], escapechar='\\')
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239 self._read_test(['a,"b,c\\""'], [['a', 'b,c"']], escapechar='\\')
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240 self._read_test(['a,"b,c"\\'], [['a', 'b,c\\']], escapechar='\\')
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241
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242 def test_read_quoting(self):
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243 self._read_test(['1,",3,",5'], [['1', ',3,', '5']])
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244 self._read_test(['1,",3,",5'], [['1', '"', '3', '"', '5']],
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245 quotechar=None, escapechar='\\')
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246 self._read_test(['1,",3,",5'], [['1', '"', '3', '"', '5']],
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247 quoting=csv.QUOTE_NONE, escapechar='\\')
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248 # will this fail where locale uses comma for decimals?
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249 self._read_test([',3,"5",7.3, 9'], [['', 3, '5', 7.3, 9]],
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250 quoting=csv.QUOTE_NONNUMERIC)
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diff changeset
251 self._read_test(['"a\nb", 7'], [['a\nb', ' 7']])
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252 self.assertRaises(ValueError, self._read_test,
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diff changeset
253 ['abc,3'], [[]],
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254 quoting=csv.QUOTE_NONNUMERIC)
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255
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256 def test_read_bigfield(self):
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257 # This exercises the buffer realloc functionality and field size
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258 # limits.
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259 limit = csv.field_size_limit()
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260 try:
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261 size = 50000
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262 bigstring = 'X' * size
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263 bigline = '%s,%s' % (bigstring, bigstring)
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264 self._read_test([bigline], [[bigstring, bigstring]])
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265 csv.field_size_limit(size)
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266 self._read_test([bigline], [[bigstring, bigstring]])
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267 self.assertEqual(csv.field_size_limit(), size)
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268 csv.field_size_limit(size-1)
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269 self.assertRaises(csv.Error, self._read_test, [bigline], [])
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270 self.assertRaises(TypeError, csv.field_size_limit, None)
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271 self.assertRaises(TypeError, csv.field_size_limit, 1, None)
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272 finally:
34406
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273 csv.field_size_limit(limit)
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274
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275 def test_read_linenum(self):
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276 for r in (csv.reader(['line,1', 'line,2', 'line,3']),
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277 csv.DictReader(['line,1', 'line,2', 'line,3'],
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278 fieldnames=['a', 'b', 'c'])):
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279 self.assertEqual(r.line_num, 0)
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280 r.next()
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281 self.assertEqual(r.line_num, 1)
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282 r.next()
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283 self.assertEqual(r.line_num, 2)
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284 r.next()
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285 self.assertEqual(r.line_num, 3)
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286 self.assertRaises(StopIteration, r.next)
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287 self.assertEqual(r.line_num, 3)
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288
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289 def test_roundtrip_quoteed_newlines(self):
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diff changeset
290 fd, name = tempfile.mkstemp()
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291 fileobj = os.fdopen(fd, "w+b")
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diff changeset
292 try:
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293 writer = csv.writer(fileobj)
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294 self.assertRaises(TypeError, writer.writerows, None)
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295 rows = [['a\nb','b'],['c','x\r\nd']]
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diff changeset
296 writer.writerows(rows)
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diff changeset
297 fileobj.seek(0)
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diff changeset
298 for i, row in enumerate(csv.reader(fileobj)):
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diff changeset
299 self.assertEqual(row, rows[i])
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diff changeset
300 finally:
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301 fileobj.close()
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diff changeset
302 os.unlink(name)
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diff changeset
303
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304 class TestDialectRegistry(unittest.TestCase):
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305 def test_registry_badargs(self):
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diff changeset
306 self.assertRaises(TypeError, csv.list_dialects, None)
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307 self.assertRaises(TypeError, csv.get_dialect)
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diff changeset
308 self.assertRaises(csv.Error, csv.get_dialect, None)
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309 self.assertRaises(csv.Error, csv.get_dialect, "nonesuch")
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310 self.assertRaises(TypeError, csv.unregister_dialect)
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311 self.assertRaises(csv.Error, csv.unregister_dialect, None)
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312 self.assertRaises(csv.Error, csv.unregister_dialect, "nonesuch")
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313 self.assertRaises(TypeError, csv.register_dialect, None)
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diff changeset
314 self.assertRaises(TypeError, csv.register_dialect, None, None)
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315 self.assertRaises(TypeError, csv.register_dialect, "nonesuch", 0, 0)
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316 self.assertRaises(TypeError, csv.register_dialect, "nonesuch",
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diff changeset
317 badargument=None)
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diff changeset
318 self.assertRaises(TypeError, csv.register_dialect, "nonesuch",
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diff changeset
319 quoting=None)
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diff changeset
320 self.assertRaises(TypeError, csv.register_dialect, [])
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diff changeset
321
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322 def test_registry(self):
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parents:
diff changeset
323 class myexceltsv(csv.excel):
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parents:
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324 delimiter = "\t"
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diff changeset
325 name = "myexceltsv"
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diff changeset
326 expected_dialects = csv.list_dialects() + [name]
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diff changeset
327 expected_dialects.sort()
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diff changeset
328 csv.register_dialect(name, myexceltsv)
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parents:
diff changeset
329 try:
55002
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diff changeset
330 self.assertTrue(csv.get_dialect(name).delimiter, '\t')
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diff changeset
331 got_dialects = csv.list_dialects()
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parents:
diff changeset
332 got_dialects.sort()
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parents:
diff changeset
333 self.assertEqual(expected_dialects, got_dialects)
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parents:
diff changeset
334 finally:
cc35ed2b26a8 new CSV file processing module - see PEP 305
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parents:
diff changeset
335 csv.unregister_dialect(name)
cc35ed2b26a8 new CSV file processing module - see PEP 305
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parents:
diff changeset
336
34391
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Andrew McNamara <andrewm@object-craft.com.au>
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diff changeset
337 def test_register_kwargs(self):
0a1608a5eb05 Allow dialect-describing keywords to be supplied to register_dialect,
Andrew McNamara <andrewm@object-craft.com.au>
parents: 34380
diff changeset
338 name = 'fedcba'
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parents: 34380
diff changeset
339 csv.register_dialect(name, delimiter=';')
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parents: 34380
diff changeset
340 try:
55002
6768b2350c57 convert usage of fail* to assert*
Benjamin Peterson <benjamin@python.org>
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diff changeset
341 self.assertTrue(csv.get_dialect(name).delimiter, '\t')
6768b2350c57 convert usage of fail* to assert*
Benjamin Peterson <benjamin@python.org>
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diff changeset
342 self.assertTrue(list(csv.reader('X;Y;Z', name)), ['X', 'Y', 'Z'])
34391
0a1608a5eb05 Allow dialect-describing keywords to be supplied to register_dialect,
Andrew McNamara <andrewm@object-craft.com.au>
parents: 34380
diff changeset
343 finally:
0a1608a5eb05 Allow dialect-describing keywords to be supplied to register_dialect,
Andrew McNamara <andrewm@object-craft.com.au>
parents: 34380
diff changeset
344 csv.unregister_dialect(name)
0a1608a5eb05 Allow dialect-describing keywords to be supplied to register_dialect,
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diff changeset
345
28339
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diff changeset
346 def test_incomplete_dialect(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
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diff changeset
347 class myexceltsv(csv.Dialect):
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parents:
diff changeset
348 delimiter = "\t"
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diff changeset
349 self.assertRaises(csv.Error, myexceltsv)
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diff changeset
350
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parents:
diff changeset
351 def test_space_dialect(self):
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diff changeset
352 class space(csv.excel):
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parents:
diff changeset
353 delimiter = " "
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diff changeset
354 quoting = csv.QUOTE_NONE
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diff changeset
355 escapechar = "\\"
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parents:
diff changeset
356
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diff changeset
357 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
358 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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parents: 30632
diff changeset
359 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
360 fileobj.write("abc def\nc1ccccc1 benzene\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
361 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
362 rdr = csv.reader(fileobj, dialect=space())
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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parents: 30632
diff changeset
363 self.assertEqual(rdr.next(), ["abc", "def"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
364 self.assertEqual(rdr.next(), ["c1ccccc1", "benzene"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
365 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
366 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
367 os.unlink(name)
32538
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diff changeset
368
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diff changeset
369 def test_dialect_apply(self):
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diff changeset
370 class testA(csv.excel):
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diff changeset
371 delimiter = "\t"
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diff changeset
372 class testB(csv.excel):
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diff changeset
373 delimiter = ":"
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diff changeset
374 class testC(csv.excel):
cc35ed2b26a8 new CSV file processing module - see PEP 305
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diff changeset
375 delimiter = "|"
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diff changeset
376
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diff changeset
377 csv.register_dialect('testC', testC)
cc35ed2b26a8 new CSV file processing module - see PEP 305
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parents:
diff changeset
378 try:
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
379 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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parents: 30632
diff changeset
380 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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parents: 30632
diff changeset
381 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
382 writer = csv.writer(fileobj)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
383 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
384 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
385 self.assertEqual(fileobj.read(), "1,2,3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
386 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
387 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
388 os.unlink(name)
32538
4fab4a5cce2f Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 32258
diff changeset
389
32258
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Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
390 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
391 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
392 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
393 writer = csv.writer(fileobj, testA)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
394 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
395 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
396 self.assertEqual(fileobj.read(), "1\t2\t3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
397 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
398 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
399 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
400
32258
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Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
401 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
402 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
403 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
404 writer = csv.writer(fileobj, dialect=testB())
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
405 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
406 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
407 self.assertEqual(fileobj.read(), "1:2:3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
408 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
409 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
410 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
411
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
412 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
413 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
414 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
415 writer = csv.writer(fileobj, dialect='testC')
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
416 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
417 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
418 self.assertEqual(fileobj.read(), "1|2|3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
419 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
420 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
421 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
422
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
423 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
424 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
425 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
426 writer = csv.writer(fileobj, dialect=testA, delimiter=';')
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
427 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
428 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
429 self.assertEqual(fileobj.read(), "1;2;3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
430 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
431 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
432 os.unlink(name)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
433
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
434 finally:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
435 csv.unregister_dialect('testC')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
436
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
437 def test_bad_dialect(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
438 # Unknown parameter
34340
be4929e5179b Improved the implementation of the internal "dialect" type. The new
Andrew McNamara <andrewm@object-craft.com.au>
parents: 32538
diff changeset
439 self.assertRaises(TypeError, csv.reader, [], bad_attr = 0)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
440 # Bad values
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
441 self.assertRaises(TypeError, csv.reader, [], delimiter = None)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
442 self.assertRaises(TypeError, csv.reader, [], quoting = -1)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
443 self.assertRaises(TypeError, csv.reader, [], quoting = 100)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
444
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
445 class TestCsvBase(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
446 def readerAssertEqual(self, input, expected_result):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
447 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
448 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
449 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
450 fileobj.write(input)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
451 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
452 reader = csv.reader(fileobj, dialect = self.dialect)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
453 fields = list(reader)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
454 self.assertEqual(fields, expected_result)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
455 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
456 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
457 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
458
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
459 def writerAssertEqual(self, input, expected_result):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
460 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
461 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
462 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
463 writer = csv.writer(fileobj, dialect = self.dialect)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
464 writer.writerows(input)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
465 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
466 self.assertEqual(fileobj.read(), expected_result)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
467 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
468 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
469 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
470
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
471 class TestDialectExcel(TestCsvBase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
472 dialect = 'excel'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
473
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
474 def test_single(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
475 self.readerAssertEqual('abc', [['abc']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
476
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
477 def test_simple(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
478 self.readerAssertEqual('1,2,3,4,5', [['1','2','3','4','5']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
479
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
480 def test_blankline(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
481 self.readerAssertEqual('', [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
482
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
483 def test_empty_fields(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
484 self.readerAssertEqual(',', [['', '']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
485
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
486 def test_singlequoted(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
487 self.readerAssertEqual('""', [['']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
488
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
489 def test_singlequoted_left_empty(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
490 self.readerAssertEqual('"",', [['','']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
491
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
492 def test_singlequoted_right_empty(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
493 self.readerAssertEqual(',""', [['','']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
494
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
495 def test_single_quoted_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
496 self.readerAssertEqual('""""', [['"']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
497
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
498 def test_quoted_quotes(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
499 self.readerAssertEqual('""""""', [['""']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
500
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
501 def test_inline_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
502 self.readerAssertEqual('a""b', [['a""b']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
503
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
504 def test_inline_quotes(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
505 self.readerAssertEqual('a"b"c', [['a"b"c']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
506
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
507 def test_quotes_and_more(self):
41120
47ede65e2efd Sane humans would call these invalid tests, but Andrew McNamara pointed out
Skip Montanaro <skip@pobox.com>
parents: 38464
diff changeset
508 # Excel would never write a field containing '"a"b', but when
47ede65e2efd Sane humans would call these invalid tests, but Andrew McNamara pointed out
Skip Montanaro <skip@pobox.com>
parents: 38464
diff changeset
509 # reading one, it will return 'ab'.
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
510 self.readerAssertEqual('"a"b', [['ab']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
511
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
512 def test_lone_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
513 self.readerAssertEqual('a"b', [['a"b']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
514
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
515 def test_quote_and_quote(self):
41120
47ede65e2efd Sane humans would call these invalid tests, but Andrew McNamara pointed out
Skip Montanaro <skip@pobox.com>
parents: 38464
diff changeset
516 # Excel would never write a field containing '"a" "b"', but when
47ede65e2efd Sane humans would call these invalid tests, but Andrew McNamara pointed out
Skip Montanaro <skip@pobox.com>
parents: 38464
diff changeset
517 # reading one, it will return 'a "b"'.
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
518 self.readerAssertEqual('"a" "b"', [['a "b"']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
519
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
520 def test_space_and_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
521 self.readerAssertEqual(' "a"', [[' "a"']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
522
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
523 def test_quoted(self):
28774
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
524 self.readerAssertEqual('1,2,3,"I think, therefore I am",5,6',
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
525 [['1', '2', '3',
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
526 'I think, therefore I am',
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
527 '5', '6']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
528
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
529 def test_quoted_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
530 self.readerAssertEqual('1,2,3,"""I see,"" said the blind man","as he picked up his hammer and saw"',
28774
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
531 [['1', '2', '3',
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
532 '"I see," said the blind man',
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
533 'as he picked up his hammer and saw']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
534
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
535 def test_quoted_nl(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
536 input = '''\
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
537 1,2,3,"""I see,""
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
538 said the blind man","as he picked up his
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
539 hammer and saw"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
540 9,8,7,6'''
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
541 self.readerAssertEqual(input,
28774
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
542 [['1', '2', '3',
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
543 '"I see,"\nsaid the blind man',
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
544 'as he picked up his\nhammer and saw'],
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
545 ['9','8','7','6']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
546
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
547 def test_dubious_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
548 self.readerAssertEqual('12,12,1",', [['12', '12', '1"', '']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
549
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
550 def test_null(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
551 self.writerAssertEqual([], '')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
552
58801
53f83f202a6d Fix two redefined test methods.
Georg Brandl <georg@python.org>
parents: 58460
diff changeset
553 def test_single_writer(self):
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
554 self.writerAssertEqual([['abc']], 'abc\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
555
58801
53f83f202a6d Fix two redefined test methods.
Georg Brandl <georg@python.org>
parents: 58460
diff changeset
556 def test_simple_writer(self):
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
557 self.writerAssertEqual([[1, 2, 'abc', 3, 4]], '1,2,abc,3,4\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
558
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
559 def test_quotes(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
560 self.writerAssertEqual([[1, 2, 'a"bc"', 3, 4]], '1,2,"a""bc""",3,4\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
561
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
562 def test_quote_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
563 self.writerAssertEqual([['abc,def']], '"abc,def"\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
564
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
565 def test_newlines(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
566 self.writerAssertEqual([[1, 2, 'a\nbc', 3, 4]], '1,2,"a\nbc",3,4\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
567
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
568 class EscapedExcel(csv.excel):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
569 quoting = csv.QUOTE_NONE
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
570 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
571
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
572 class TestEscapedExcel(TestCsvBase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
573 dialect = EscapedExcel()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
574
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
575 def test_escape_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
576 self.writerAssertEqual([['abc,def']], 'abc\\,def\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
577
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
578 def test_read_escape_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
579 self.readerAssertEqual('abc\\,def\r\n', [['abc,def']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
580
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
581 class QuotedEscapedExcel(csv.excel):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
582 quoting = csv.QUOTE_NONNUMERIC
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
583 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
584
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
585 class TestQuotedEscapedExcel(TestCsvBase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
586 dialect = QuotedEscapedExcel()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
587
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
588 def test_write_escape_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
589 self.writerAssertEqual([['abc,def']], '"abc,def"\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
590
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
591 def test_read_escape_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
592 self.readerAssertEqual('"abc\\,def"\r\n', [['abc,def']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
593
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
594 class TestDictFields(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
595 ### "long" means the row is longer than the number of fieldnames
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
596 ### "short" means there are fewer elements in the row than fieldnames
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
597 def test_write_simple_dict(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
598 fd, name = tempfile.mkstemp()
59337
02aefc4257de Try to fix buildbot breakage from r78384.
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 59078
diff changeset
599 fileobj = io.open(fd, 'w+b')
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
600 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
601 writer = csv.DictWriter(fileobj, fieldnames = ["f1", "f2", "f3"])
59078
dda5165a2374 Fix #1537721: add writeheader() method to csv.DictWriter.
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 58801
diff changeset
602 writer.writeheader()
dda5165a2374 Fix #1537721: add writeheader() method to csv.DictWriter.
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 58801
diff changeset
603 fileobj.seek(0)
dda5165a2374 Fix #1537721: add writeheader() method to csv.DictWriter.
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 58801
diff changeset
604 self.assertEqual(fileobj.readline(), "f1,f2,f3\r\n")
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
605 writer.writerow({"f1": 10, "f3": "abc"})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
606 fileobj.seek(0)
59078
dda5165a2374 Fix #1537721: add writeheader() method to csv.DictWriter.
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 58801
diff changeset
607 fileobj.readline() # header
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
608 self.assertEqual(fileobj.read(), "10,,abc\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
609 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
610 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
611 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
612
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
613 def test_write_no_fields(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
614 fileobj = StringIO()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
615 self.assertRaises(TypeError, csv.DictWriter, fileobj)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
616
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
617 def test_read_dict_fields(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
618 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
619 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
620 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
621 fileobj.write("1,2,abc\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
622 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
623 reader = csv.DictReader(fileobj,
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
624 fieldnames=["f1", "f2", "f3"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
625 self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
626 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
627 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
628 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
629
30632
f9dfdcb897bb Make the fieldnames argument optional in the DictReader. If self.fieldnames
Skip Montanaro <skip@pobox.com>
parents: 30356
diff changeset
630 def test_read_dict_no_fieldnames(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
631 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
632 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
633 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
634 fileobj.write("f1,f2,f3\r\n1,2,abc\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
635 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
636 reader = csv.DictReader(fileobj)
48198
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
637 self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
638 self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
639 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
640 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
641 os.unlink(name)
30632
f9dfdcb897bb Make the fieldnames argument optional in the DictReader. If self.fieldnames
Skip Montanaro <skip@pobox.com>
parents: 30356
diff changeset
642
48198
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
643 # Two test cases to make sure existing ways of implicitly setting
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
644 # fieldnames continue to work. Both arise from discussion in issue3436.
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
645 def test_read_dict_fieldnames_from_file(self):
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
646 fd, name = tempfile.mkstemp()
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
647 f = os.fdopen(fd, "w+b")
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
648 try:
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
649 f.write("f1,f2,f3\r\n1,2,abc\r\n")
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
650 f.seek(0)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
651 reader = csv.DictReader(f, fieldnames=csv.reader(f).next())
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
652 self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
653 self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
654 finally:
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
655 f.close()
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
656 os.unlink(name)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
657
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
658 def test_read_dict_fieldnames_chain(self):
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
659 import itertools
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
660 fd, name = tempfile.mkstemp()
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
661 f = os.fdopen(fd, "w+b")
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
662 try:
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
663 f.write("f1,f2,f3\r\n1,2,abc\r\n")
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
664 f.seek(0)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
665 reader = csv.DictReader(f)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
666 first = next(reader)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
667 for row in itertools.chain([first], reader):
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
668 self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
669 self.assertEqual(row, {"f1": '1', "f2": '2', "f3": 'abc'})
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
670 finally:
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
671 f.close()
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
672 os.unlink(name)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
673
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
674 def test_read_long(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
675 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
676 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
677 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
678 fileobj.write("1,2,abc,4,5,6\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
679 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
680 reader = csv.DictReader(fileobj,
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
681 fieldnames=["f1", "f2"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
682 self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
683 None: ["abc", "4", "5", "6"]})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
684 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
685 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
686 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
687
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
688 def test_read_long_with_rest(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
689 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
690 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
691 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
692 fileobj.write("1,2,abc,4,5,6\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
693 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
694 reader = csv.DictReader(fileobj,
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
695 fieldnames=["f1", "f2"], restkey="_rest")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
696 self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
697 "_rest": ["abc", "4", "5", "6"]})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
698 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
699 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
700 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
701
30632
f9dfdcb897bb Make the fieldnames argument optional in the DictReader. If self.fieldnames
Skip Montanaro <skip@pobox.com>
parents: 30356
diff changeset
702 def test_read_long_with_rest_no_fieldnames(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
703 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
704 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
705 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
706 fileobj.write("f1,f2\r\n1,2,abc,4,5,6\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
707 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
708 reader = csv.DictReader(fileobj, restkey="_rest")
48198
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
709 self.assertEqual(reader.fieldnames, ["f1", "f2"])
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
710 self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
711 "_rest": ["abc", "4", "5", "6"]})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
712 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
713 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
714 os.unlink(name)
30632
f9dfdcb897bb Make the fieldnames argument optional in the DictReader. If self.fieldnames
Skip Montanaro <skip@pobox.com>
parents: 30356
diff changeset
715
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
716 def test_read_short(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
717 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
718 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
719 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
720 fileobj.write("1,2,abc,4,5,6\r\n1,2,abc\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
721 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
722 reader = csv.DictReader(fileobj,
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
723 fieldnames="1 2 3 4 5 6".split(),
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
724 restval="DEFAULT")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
725 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
726 "4": '4', "5": '5', "6": '6'})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
727 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
728 "4": 'DEFAULT', "5": 'DEFAULT',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
729 "6": 'DEFAULT'})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
730 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
731 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
732 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
733
29410
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
734 def test_read_multi(self):
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
735 sample = [
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
736 '2147483648,43.0e12,17,abc,def\r\n',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
737 '147483648,43.0e2,17,abc,def\r\n',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
738 '47483648,43.0,170,abc,def\r\n'
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
739 ]
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
740
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
741 reader = csv.DictReader(sample,
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
742 fieldnames="i1 float i2 s1 s2".split())
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
743 self.assertEqual(reader.next(), {"i1": '2147483648',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
744 "float": '43.0e12',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
745 "i2": '17',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
746 "s1": 'abc',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
747 "s2": 'def'})
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
748
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
749 def test_read_with_blanks(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
750 reader = csv.DictReader(["1,2,abc,4,5,6\r\n","\r\n",
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
751 "1,2,abc,4,5,6\r\n"],
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
752 fieldnames="1 2 3 4 5 6".split())
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
753 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
754 "4": '4', "5": '5', "6": '6'})
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
755 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
756 "4": '4', "5": '5', "6": '6'})
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
757
30356
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
758 def test_read_semi_sep(self):
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
759 reader = csv.DictReader(["1;2;abc;4;5;6\r\n"],
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
760 fieldnames="1 2 3 4 5 6".split(),
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
761 delimiter=';')
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
762 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
763 "4": '4', "5": '5', "6": '6'})
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
764
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
765 class TestArrayWrites(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
766 def test_int_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
767 import array
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
768 contents = [(20-i) for i in range(20)]
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
769 a = array.array('i', contents)
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
770
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
771 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
772 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
773 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
774 writer = csv.writer(fileobj, dialect="excel")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
775 writer.writerow(a)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
776 expected = ",".join([str(i) for i in a])+"\r\n"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
777 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
778 self.assertEqual(fileobj.read(), expected)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
779 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
780 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
781 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
782
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
783 def test_double_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
784 import array
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
785 contents = [(20-i)*0.1 for i in range(20)]
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
786 a = array.array('d', contents)
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
787 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
788 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
789 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
790 writer = csv.writer(fileobj, dialect="excel")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
791 writer.writerow(a)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
792 expected = ",".join([str(i) for i in a])+"\r\n"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
793 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
794 self.assertEqual(fileobj.read(), expected)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
795 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
796 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
797 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
798
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
799 def test_float_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
800 import array
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
801 contents = [(20-i)*0.1 for i in range(20)]
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
802 a = array.array('f', contents)
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
803 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
804 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
805 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
806 writer = csv.writer(fileobj, dialect="excel")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
807 writer.writerow(a)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
808 expected = ",".join([str(i) for i in a])+"\r\n"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
809 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
810 self.assertEqual(fileobj.read(), expected)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
811 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
812 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
813 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
814
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
815 def test_char_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
816 import array, string
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
817 a = array.array('c', string.letters)
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
818 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
819 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
820 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
821 writer = csv.writer(fileobj, dialect="excel")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
822 writer.writerow(a)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
823 expected = ",".join(a)+"\r\n"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
824 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
825 self.assertEqual(fileobj.read(), expected)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
826 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
827 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
828 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
829
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
830 class TestDialectValidity(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
831 def test_quoting(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
832 class mydialect(csv.Dialect):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
833 delimiter = ";"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
834 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
835 doublequote = False
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
836 skipinitialspace = True
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
837 lineterminator = '\r\n'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
838 quoting = csv.QUOTE_NONE
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
839 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
840
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
841 mydialect.quoting = None
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
842 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
843
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
844 mydialect.doublequote = True
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
845 mydialect.quoting = csv.QUOTE_ALL
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
846 mydialect.quotechar = '"'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
847 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
848
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
849 mydialect.quotechar = "''"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
850 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
851
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
852 mydialect.quotechar = 4
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
853 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
854
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
855 def test_delimiter(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
856 class mydialect(csv.Dialect):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
857 delimiter = ";"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
858 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
859 doublequote = False
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
860 skipinitialspace = True
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
861 lineterminator = '\r\n'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
862 quoting = csv.QUOTE_NONE
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
863 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
864
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
865 mydialect.delimiter = ":::"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
866 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
867
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
868 mydialect.delimiter = 4
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
869 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
870
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
871 def test_lineterminator(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
872 class mydialect(csv.Dialect):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
873 delimiter = ";"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
874 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
875 doublequote = False
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
876 skipinitialspace = True
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
877 lineterminator = '\r\n'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
878 quoting = csv.QUOTE_NONE
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
879 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
880
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
881 mydialect.lineterminator = ":::"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
882 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
883
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
884 mydialect.lineterminator = 4
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
885 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
886
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
887
28827
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
888 class TestSniffer(unittest.TestCase):
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
889 sample1 = """\
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
890 Harry's, Arlington Heights, IL, 2/1/03, Kimi Hayes
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
891 Shark City, Glendale Heights, IL, 12/28/02, Prezence
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
892 Tommy's Place, Blue Island, IL, 12/28/02, Blue Sunday/White Crow
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
893 Stonecutters Seafood and Chop House, Lemont, IL, 12/19/02, Week Back
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
894 """
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
895 sample2 = """\
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
896 'Harry''s':'Arlington Heights':'IL':'2/1/03':'Kimi Hayes'
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
897 'Shark City':'Glendale Heights':'IL':'12/28/02':'Prezence'
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
898 'Tommy''s Place':'Blue Island':'IL':'12/28/02':'Blue Sunday/White Crow'
56253
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
899 'Stonecutters ''Seafood'' and Chop House':'Lemont':'IL':'12/19/02':'Week Back'
28827
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
900 """
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
901 header = '''\
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
902 "venue","city","state","date","performers"
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
903 '''
29169
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
904 sample3 = '''\
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
905 05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
906 05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
907 05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
908 '''
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
909
29410
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
910 sample4 = '''\
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
911 2147483648;43.0e12;17;abc;def
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
912 147483648;43.0e2;17;abc;def
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
913 47483648;43.0;170;abc;def
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
914 '''
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
915
36146
22dbf5818b0b Fix for problem with Sniffer class. If your delimiter is whitespace and the
Skip Montanaro <skip@pobox.com>
parents: 34921
diff changeset
916 sample5 = "aaa\tbbb\r\nAAA\t\r\nBBB\t\r\n"
36157
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
917 sample6 = "a|b|c\r\nd|e|f\r\n"
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
918 sample7 = "'a'|'b'|'c'\r\n'd'|e|f\r\n"
36146
22dbf5818b0b Fix for problem with Sniffer class. If your delimiter is whitespace and the
Skip Montanaro <skip@pobox.com>
parents: 34921
diff changeset
919
28827
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
920 def test_has_header(self):
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
921 sniffer = csv.Sniffer()
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
922 self.assertEqual(sniffer.has_header(self.sample1), False)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
923 self.assertEqual(sniffer.has_header(self.header+self.sample1), True)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
924
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
925 def test_sniff(self):
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
926 sniffer = csv.Sniffer()
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
927 dialect = sniffer.sniff(self.sample1)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
928 self.assertEqual(dialect.delimiter, ",")
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
929 self.assertEqual(dialect.quotechar, '"')
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
930 self.assertEqual(dialect.skipinitialspace, True)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
931
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
932 dialect = sniffer.sniff(self.sample2)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
933 self.assertEqual(dialect.delimiter, ":")
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
934 self.assertEqual(dialect.quotechar, "'")
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
935 self.assertEqual(dialect.skipinitialspace, False)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
936
29169
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
937 def test_delimiters(self):
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
938 sniffer = csv.Sniffer()
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
939 dialect = sniffer.sniff(self.sample3)
38464
e989ee5d404a ("Forward-port" of r46506)
Armin Rigo <arigo@tunes.org>
parents: 36157
diff changeset
940 # given that all three lines in sample3 are equal,
e989ee5d404a ("Forward-port" of r46506)
Armin Rigo <arigo@tunes.org>
parents: 36157
diff changeset
941 # I think that any character could have been 'guessed' as the
e989ee5d404a ("Forward-port" of r46506)
Armin Rigo <arigo@tunes.org>
parents: 36157
diff changeset
942 # delimiter, depending on dictionary order
58460
17891566a478 use assert[Not]In where appropriate
Ezio Melotti <ezio.melotti@gmail.com>
parents: 56253
diff changeset
943 self.assertIn(dialect.delimiter, self.sample3)
29169
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
944 dialect = sniffer.sniff(self.sample3, delimiters="?,")
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
945 self.assertEqual(dialect.delimiter, "?")
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
946 dialect = sniffer.sniff(self.sample3, delimiters="/,")
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
947 self.assertEqual(dialect.delimiter, "/")
29410
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
948 dialect = sniffer.sniff(self.sample4)
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
949 self.assertEqual(dialect.delimiter, ";")
36146
22dbf5818b0b Fix for problem with Sniffer class. If your delimiter is whitespace and the
Skip Montanaro <skip@pobox.com>
parents: 34921
diff changeset
950 dialect = sniffer.sniff(self.sample5)
22dbf5818b0b Fix for problem with Sniffer class. If your delimiter is whitespace and the
Skip Montanaro <skip@pobox.com>
parents: 34921
diff changeset
951 self.assertEqual(dialect.delimiter, "\t")
36157
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
952 dialect = sniffer.sniff(self.sample6)
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
953 self.assertEqual(dialect.delimiter, "|")
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
954 dialect = sniffer.sniff(self.sample7)
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
955 self.assertEqual(dialect.delimiter, "|")
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
956 self.assertEqual(dialect.quotechar, "'")
29169
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
957
56253
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
958 def test_doublequote(self):
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
959 sniffer = csv.Sniffer()
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
960 dialect = sniffer.sniff(self.header)
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
961 self.assertFalse(dialect.doublequote)
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
962 dialect = sniffer.sniff(self.sample2)
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
963 self.assertTrue(dialect.doublequote)
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
964
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
965 if not hasattr(sys, "gettotalrefcount"):
28917
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
966 if test_support.verbose: print "*** skipping leakage tests ***"
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
967 else:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
968 class NUL:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
969 def write(s, *args):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
970 pass
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
971 writelines = write
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
972
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
973 class TestLeaks(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
974 def test_create_read(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
975 delta = 0
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
976 lastrc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
977 for i in xrange(20):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
978 gc.collect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
979 self.assertEqual(gc.garbage, [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
980 rc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
981 csv.reader(["a,b,c\r\n"])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
982 csv.reader(["a,b,c\r\n"])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
983 csv.reader(["a,b,c\r\n"])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
984 delta = rc-lastrc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
985 lastrc = rc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
986 # if csv.reader() leaks, last delta should be 3 or more
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
987 self.assertEqual(delta < 3, True)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
988
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
989 def test_create_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
990 delta = 0
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
991 lastrc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
992 s = NUL()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
993 for i in xrange(20):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
994 gc.collect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
995 self.assertEqual(gc.garbage, [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
996 rc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
997 csv.writer(s)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
998 csv.writer(s)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
999 csv.writer(s)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1000 delta = rc-lastrc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1001 lastrc = rc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1002 # if csv.writer() leaks, last delta should be 3 or more
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1003 self.assertEqual(delta < 3, True)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1004
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1005 def test_read(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1006 delta = 0
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1007 rows = ["a,b,c\r\n"]*5
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1008 lastrc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1009 for i in xrange(20):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1010 gc.collect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1011 self.assertEqual(gc.garbage, [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1012 rc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1013 rdr = csv.reader(rows)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1014 for row in rdr:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1015 pass
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1016 delta = rc-lastrc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1017 lastrc = rc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1018 # if reader leaks during read, delta should be 5 or more
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1019 self.assertEqual(delta < 5, True)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1020
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1021 def test_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1022 delta = 0
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1023 rows = [[1,2,3]]*5
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1024 s = NUL()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1025 lastrc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1026 for i in xrange(20):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1027 gc.collect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1028 self.assertEqual(gc.garbage, [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1029 rc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1030 writer = csv.writer(s)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1031 for row in rows:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1032 writer.writerow(row)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1033 delta = rc-lastrc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1034 lastrc = rc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1035 # if writer leaks during write, last delta should be 5 or more
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1036 self.assertEqual(delta < 5, True)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1037
28991
ce6c3cc422ab add not-yet-supported Unicode test just so it doesn't get lost.
Skip Montanaro <skip@pobox.com>
parents: 28917
diff changeset
1038 # commented out for now - csv module doesn't yet support Unicode
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1039 ## class TestUnicode(unittest.TestCase):
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1040 ## def test_unicode_read(self):
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1041 ## import codecs
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1042 ## f = codecs.EncodedFile(StringIO("Martin von Löwis,"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1043 ## "Marc André Lemburg,"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1044 ## "Guido van Rossum,"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1045 ## "François Pinard\r\n"),
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1046 ## data_encoding='iso-8859-1')
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1047 ## reader = csv.reader(f)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1048 ## self.assertEqual(list(reader), [[u"Martin von Löwis",
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1049 ## u"Marc André Lemburg",
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1050 ## u"Guido van Rossum",
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1051 ## u"François Pinardn"]])
28991
ce6c3cc422ab add not-yet-supported Unicode test just so it doesn't get lost.
Skip Montanaro <skip@pobox.com>
parents: 28917
diff changeset
1052
28917
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1053 def test_main():
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1054 mod = sys.modules[__name__]
28917
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1055 test_support.run_unittest(
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1056 *[getattr(mod, name) for name in dir(mod) if name.startswith('Test')]
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1057 )
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1058
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1059 if __name__ == '__main__':
28917
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1060 test_main()